Modulation signal generation avoiding forbidden regions

Abstract

An apparatus for generating an applicable control signal, including: a control module operable to generate a reference control signal that avoids, but is effectively within, a forbidden region by alternating the reference control signal between upper and lower levels of the forbidden region; an error determination module operable to generate an error signal based on a difference between the reference control signal and the applicable control signal; and a compensation module operable to noise-shape the error signal to suppress a portion of the error signal resulting from avoiding the forbidden region, and to modify the reference control signal based on the noise-shaped error signal, wherein the modified reference control signal is output by the apparatus as the applicable control signal for generating a modulation signal.

Dependencies are inferred from the claim text.